FREQUENTLY ASKED QUESTIONS - waithumidifiers.comwaithumidifiers.com/instructions/wait1000.pdfFREQUENTLY ASKED QUESTIONS Question: What type of furnaces will this humidifier work on?

FREQUENTLY ASKED QUESTIONS

Question: What type of furnaces will this humidifier work on?

Answer: The unit will work on most forced air furnacesincorporating a heating source, a supply duct, and a return ductat least 8” in width.

Comment: The technology used in this humidifier to delivermoisture to the air is the simplest and easiest style, a bypass typeevaporative humidifier. Your furnace fan creates a pressure differencebetween the supply air (hot, high pressure) and return air (cold, lowpressure). By installing a bypass tube between the supply and returnduct a small amount of air is forced (via the pressure difference) toflow from the supply duct through the humidifier’s evaporator padand back into the return duct. What will differ from furnace tofurnace or home to home is howmuch moisture or capacity you willget from the unit. There are several factors which will affect this, howold is your home, how old is your furnace, how well insulated is yourhome. For example, the capacity for this unit is 15 US gallons per 24hrs of operation. This is based on ARI standards (120’F hot air temp,60’F water supply temp, 0.5” static pressure difference betweensupply & return duct), used by all humidifier manufacturers. If yourfurnace is a hi efficiency or pulse type furnace the hot airtemperature may be less, or the length of time the furnace burner ison may be less; therefore as a rule of thumb we would say youwould get approx. 75% to 80% of rated output.

Question: How much moisture does the humidifier deliver tothe air in my home?

Answer: This model will deliver 15 US Gallons (12.5 Imperialgallons, 57 litres) per 24 hours of operation.

Comment: 24 hours of operation means at design conditions; yourfurnace will only deliver the required hot air (120’F) when it is on.Your furnace should not cycle more than 1/3 of the time so the 24hours of humidifier operation may take up to 3 days to complete.

Question: How much water does this humidifier use?

Answer: This humidifier is 100% efficient, meaning all the water ituses is delivered to the air to humidifier your home. It will use 15US gallons (12.5 Imperial gallons, 57 litres) per 24 hrs of operation.

Comment: As mentioned above 24 hours of operation means atdesign conditions – your furnace will only deliver the requiredhot air (120’F) when it is on. Your furnace should not cycle morethan 1/3 of the time so the 24 hours of humidifier operation maytake up to 3 days to complete.

Question: I’m replacing an old humidifier on my furnacecan I use the old components?

Answer: You should replace all the components to ensure goodoperation. You may be able to utilize the existing duct cut outs forthe new install however some reworking may be required.

Comment: As a rule we like to see you change all thecomponents, particularly the water supply tube. As over timeminerals, solids, or sludge may have built up, these will veryquickly clog the water inlets, or over time the tube may havebecome worn or leaky. Replace the bypass duct as well, theremay be secondary dampers unseen which will block air or again

there may be unseen wear. The same goes for electricalcomponents or wiring these may be malfunctioning or worn out.Note: If you have a humidifier which was interlocked with yourfurnace (meaning the humidifier only came on when the furnacecame on) then the old transformer is wired in with your furnace.Do not attempt to disconnect this transformer from the furnaceonly disconnect the low voltage side wires for the humidifier andtape over the terminals.

Question: I’ve installed the humidifier on my furnace and itis functioning properly but I do not feel anything andhumidistat reading is not changing, is the humidifier working?

Answer: As long as there is hot air going through the humidifierand there is water pan and the drum assembly is getting wet thenmoisture is being delivered to the air in your home.

Comment: All year, and especially during the winter monthswhen many combustion appliance are operating in your home,fresh outdoor air is required to ensure a healthy environment foryour family. Do not think of your home as a sealed bubble, nomatter how well insulated, all homes breath (some more thanothers). The cold dry outside air is mixing with the air in yourhome constantly, even when your furnace is not running. Afurnace humidifier will work to offset the constant effect the dryoutside air has on your home, and your home’s furnishings.Throughout the winter there is a constant diminishing andreplenishing of moisture levels in the home, conditions inside andout rarely remain stagnant for any length of time.

Installation• READ THESE INSTRUCTIONS FULLY BEFORE INSTALLINGTHIS PRODUCT.

• SAVE THESE INSTRUCTIONS FOR REFERENCE.

• SHUT THEWATEROFF BEFOREWORKINGONTHEHUMIDIFIER.

• SHUT THE POWER OFF BEFORE WORKING ON THEHUMIDIFIER.

• TAKE PRECAUTION WHEN CUTTING OR HANDING METALPCS. (CUT DUCT WORK), SHARP EDGES CAN CAUSESERIOUS INJURY.

• WHEN DRILLING OR CUTTING INTO DUCTING BEEXTREMELY CAREFUL NOT TO DAMAGE AIR-CONDITIONING COILS OR OTHER FURNACE APPARATUS.

• THIS UNIT MUST BE INSTALLED IN 8” WIDE DUCTMINIMUM.

•DONOT INSTALL THIS UNITWHERE EXTREME TEMPERATURESEXIST (BELOW 8˚C / 45˚F OR ABOVE 63˚C / 145˚F).

• THIS UNIT IS NOT SUPPLIED WITH A DRAIN TUBE.HOWEVER WE DO RECOMMEND YOU PURCHASE ANDINSTALL A 1/2” DRAIN TUBE (SEE SECTION INSTALLATIONINSTRUCTIONS) TO PROTECT AGAINST WATEROVERFLOW.

• FOR THIS UNIT TO OPERATE PROPERLY IT MUST BEINSTALLED ON A FORCED AIR HEATING SYSTEM WITH ASUPPLY DUCT AND RETURN DUCT.

• THE HUMIDIFIER AND THE BYPASS COLLAR DAMPER ARETO BE INSTALLED ON DUCTING ONLY. UNDER NOCIRCUMSTANCES MOUNT ANY COMPONENT TO THEFURNACE BODY.

2 Furnace Humidifier

• ELECTRICAL WIRING, WATER SUPPLY, AND DRAIN TUBEMUST NOT KINK OR COME INTO CONTACT WITH SHARPEDGES OR HOT SURFACES.

• IF REPLACING AN EXISTING FURNACE HUMIDIFIER, WERECOMMEND YOU REPLACE ALL COMPONENTS TOENSURE PROPER HUMIDIFIER OPERATION.

• THE INSTALLATION OF THIS PRODUCT MUST COMPLYWITH NATIONAL AND LOCAL ELECTRICAL, PLUMBING,BUILDING, AND MECHANICAL CODES.

REQUIRED TOOLS• Safety glasses• Work gloves• Electric or cordless drill• Drill bits (3/8", 1/8", 7/32”, 7/64")• Tin snips• Full size Philips or Roberstons screw driver• Short handle Philips or Roberstons screw driver• Adjustable wrench• Utility knife• Pliers• Level• Tape• Measuring tape or ruler• Medium-grit sand paper• Pencil

SELECTION OF LOCATIONTO MOUNT THE HUMIDIFIER

All bypass type furnace-mount humidifiers rely on the pressuredifference which exists between the supply duct (hot air) and thereturn duct (cold air) to create an air flow through thehumidifier’s evaporator pad. The air will ALWAYS flow from hot(high pressure) to cold (low pressure).

•INSTALLATION TIP: Before starting fully plan out theinstallation. Check for the locations of the humidifier,bypass collar & damper, and the humidistat andassociated sensors. Plan the length and type of ductingrequired, the water supply, the water drain, the electricalwiring, and a constant 120 volt outlet to plug in thetransformer. This will ensure your installation goes aseasy and quickly as possible

1. The humidifier body and bypass tube are installed at eye level,easily accessible for installation and routine maintenance.

2. The space between the humidifier body and bypass tube are

no more than 30” to ensure maximum air flow through thehumidifier.

3. The supplied flex bypass tube is cut to the proper length andpulled tight to ensure maximum air flow.

4. The humidistat is located a minimum of 6” upstream of thehumidifier, where moist air will enter the return duct.

5. The bypass damper is fully open.

6. The humidifier is mounted level on the duct.

7. There is nothing inside the duct behind the bypass collar anddamper or the humidifier body.

8. The humidifier body and the bypass collar and damper are level.

Not all installations will be as shown above – in cases where:

• The bypass ductrequired is more thanthe supplied 30”

• The bypass collar anddamper must beinstalled above orbelow the humidifier

• The bypass collar anddamper must beinstalledperpendicular to thehumidifier

Use hard metal duct andhard metal elbows. This willminimize the amount of air-flow restriction.

3Furnace Humidifier

INSTALLATION AND OPERATING INSTRUCTIONS:Furnace Humidifier

IDEAL INSTALLATION

SUPPLY DUCTHOT AIR

RETURN DUCTCOLD AIR

8" wide duct minimum

Bypass collar andunit level

Bypass tube pulledtight and cut to length

Damper fully open No morethan 30"

Figure 1

SNAP OFFAND SAVE

Figure 2

HUMIDIFIER BODY INSTALLATION

This humidifier is designed to be mounted on the return duct(cold air) for safety reasons. This will minimize the exposure tohigh temperatures and extend product/component life. Alwaystake precaution to ensure that water supply tube, water draintube, any electrical wiring does not become kinked or come intocontact with sharp edges or hot surfaces. Keep in mind that thehumidistat must be mounted at least 6” upstream from thehumidifier cabinet, where moist air enters the duct.

CAUTION: When cutting or drilling into ducting take care not todamage any air-conditioning coils or other furnace apparatus.

CAUTION: Wear safety glasses and work gloves when installingthis unit, sharp metal edges can cause severe injury.

CAUTION: Turn the furnace off before starting this installation.

This humidifier cabinet consists of two side panels (bypass sidepanel and motor side panel), a front cover, and a water pan. Thesurface of the duct will form the rear of the humidifier cabinet.

STEP #1: RIGHT HAND DUCTING OR LEFT HAND DUCTING

Once you have decided the best location for the humidifierdetermine if the unit must be left or right hand ducting. This willdepend on whether the hot air duct is to the left or right of thecold air duct. (Fig. 3) The side panels are symmetrical so settingup for left or right hand ducting is done by flipping the panel 180degrees. (Fig. 4)

STEP #2: MOUNTING THE HUMIDIFIER CABINET ON THE DUCT

If you have not already done so, remove the humidifier sidepanels from the carton. Locate the “Humidifier CabinetMounting Template”.


CAUTION: Wear safety glasses and work gloves when installingthis unit. Sharp metal edges can cause severe injury.

CAUTION: Turn off the furnace before beginning this installation.

DRILLING THE HOLES AND MAKING THE CUTOUT

1. Use adhesive tape to affix thetemplate onto the duct in theselected location. Use the levelline on the template to ensure thehumidifier cabinet will bemounted level.

2. Drill the 4 marked 1/8” side panelmounting holes. (Fig. 5)

3. Using a 3/8” drill bit (not supplied)drill a hole inside the rectanglearea marked “Humidifier CutOut”. (Fig. 6)

4. Using the 3/8” hole as a startingpoint cut out the Humidifier CutOut area marked on the templateusing tin snips (not supplied). Cuton the outside of the lines toensure the cabinet will fit.

5. Remove remaining portion of thetemplate from the duct.

MOUNTING THE BYPASSSIDE PANEL

6. Mount the bypass side panel tothe duct first. This is the side ofthe humidifier closest to the hotair duct.

7. Use 2 of the supplied screws tosecure the bypass side panel ontothe duct work. The screws willinstall through two holes on thebypass side panel flange into two ofthe holes drill in #2. (Fig. 7)

MOUNTING THE MOTORSIDE PANEL

8. Repeat the last two steps for themotor side panel. (Fig. 8)

9. After the side panels are mountedonto the duct install the two stripsof gasket on the duct in betweenthe two sides top and bottom, asshown in figure 9.


RIGHTHAND DUCTING

SUPPLY DUCTHOT AIR

RETURN DUCTCOLD AIR

Flipped 180˚

Figure 3

SUPPLY DUCTHOT AIRRETURN DUCT

COLD AIR

LEFTHAND DUCTING

Figure 4

Flipped 180˚

Figure 5DRILL HOLES

HUMIDIFIERCUT-OUT

Figure 6

DRILL CUT-OUT

HUMIDIFIERCUT-OUT

Figure 7

Figure 8

Figure 9

BOTTOMGASKET

MOUNTING THE WATER PAN

10. Install the water pan intothe side panels. The waterpan will install with thedrain fitting to the rear ofthe humidifier. (Fig. 10)

IMPORTANT NOTE: IF YOUARE PLANNING ONINSTALLING A DRAIN TUBE(NOT SUPPLIED) DRILL OUTTHE DRAIN FITTING AS SHOWN IN THE SECTION “OVERFLOWDRAIN CONNECTION” BEFORE INSTALLING THE DRUM. ONLYDRILL OUT THE DRAIN FITTING IF YOU ARE INSTALLING ADRAIN TUBE. YOU WILL HAVE PURCHASE THE TUBESEPARATELY.

11. Position the water panbetween the sides so thatthe flange on either side ofthe water pan is resting onribs on the inside of eitherside panel. (Fig. 11)

12. Before the water pan isfully installed you will haveto slightly deflect the frontof both side panels (one at atime) to insert the hooks onthe front of the water paninto slots on the front of theside panels. (Fig. 12) As youare doing this be sure thatthe rear of the water panflange is sliding under theupper ribs at the rear of theside panels. (Fig. 13) Oncethe water pan is in theproper position, secure thewater pan in place using thetwo #6 screws provided inthe hardware pack (fig. 13b)

INSTALLING THE FLOAT ANDVALVE ASSEMBLY

Note before installing the floatand valve assembly you willhave to remove the properdouble “D” knockout, refer tofigure 14A. Using a screw driverremove the lower knockoutclosest to the water pan.

13. Once the pan is in placeinstall the float & valveassembly, first remove the

white mounting nut (Fig. 14)insert the threaded portionof the float valve into thedouble D hole and secure inplace with the whitemounting nut removedearlier. Hold the valve as straight as possible while tighteningso an accurate water level can be maintained. (Fig. 15)

INSTALLING THE BEARING INTOTHE BYPASS SIDE PANEL

14. Retrieve the Bearing whichwas removed from the bypass sidepanel at the beginning of theinstallation (Fig. 16) and install itinto the center of the bypass sidepanel. (Fig. 17) If replacing orrepairing a bearing insert a slotted

screw driver into the back top of thebearing and rotate the screw driver,the bearing will pop out of the sidepanel. (Fig. 17B)

INSTALLING THE DRUM ANDEVAPORATOR PAD ASSEMBLY

15. Retrieve the drum and evaporatorpad assembly. This assembly is madeup of the drum the evaporator pad,and the drum shaft, you will noticethis assembly has an open end and a closed end. (Fig. 18)

16. Starting with the closed end install the drum shaft into thecenter of the motor coupling then install the other end of thedrum shaft into the bearing, gently pushing down in place toposition. (Fig. 19)

STEP #3: MOUNTING THE BYPASS COLLAR AND DAMPER

The humidifier comes with a collar & damper mountingtemplate. If possible ensure the bypass collar will be level to thehumidifier duct connection. Try to keep the bypass collar within30” of the humidifier. To ensure you have clear access to allcomponents do not install the flexible bypass tube until all waterand electrical connections are made to the humidifier.

5Furnace Humidifier

Figure 13b

Figure 10

DRAIN FITTING TOTHE REAR OF PAN

Figure 11

SIDEPANEL RIBWATER

PAN FLANGE

Figure 13

SIDE PANELUPPER RIB

Figure 12

DEFLECTSLIGHTLY

DEFLECTSLIGHTLY

SIDE PANELSLOT

WATER PANHOOK

SIDE PANELLOWER RIB

PAN FLANGEIN BETWEEN

Figure 14a

KNOCK OUTTHE LOWER DOUBLE D HOLE

Figure 14

FLOAT ASSEMBLY

WHITE MOUNTING NUT

Figure 15

WRENCHTIGHTENINGNUT

HAND HOLDINGFLOAT STRAIGHT

Figure 16

BEARING

Figure 17

BEARING SNAPPED INCOMPLETELY AND U SHAPE UP

Figure 17b

ROTATE TODISLODGETHE BEARING

Figure 18

EVAPORATORPAD

OPENEND

DRUMCAGE

CLOSEDEND

DRUMSHAFT

Figure 19

DRUM EVAPORATORPAD ASSEMBLY

OPENEND

BEARING

CLOSEDEND

MOTOR

MOTORCOUPLING


CAUTION: Wear safety glasses and work gloves when installingthis unit. Sharp metal edges can cause severe injury.

1. Use adhesive tape to affix the bypass template onto the ductin the selected location.

2. Drill the 3 marked 1/8” holes.

3. Using a 3/8” drill bit (not supplied) drill a hole inside the circulararea marked collar cut out.

4. Using the 3/8” hole drilled earlier as a starting point cut out theCollar Cut Out area marked on the template using tin snips(not supplied).

5. Mount the bypass collar anddamper (Fig. 20) using the threesupplied screws. The air dampershould be installed in the openposition. The top screw secures thedamper.

•INSTALLATION TIP If replacing an existing humidifierwhich has been installed on your furnace you may beable to use the existing cut-outs, however replace thecomponents, bypass collar and damper, and bypassducting. The majority of furnace humidifiers use 6"ducting for bypass.

STEP #4: WATER SUPPLY AND DRAINAGE CONNECTION

WATER CONNECTION TO THE HUMIDIFIER

IMPORTANT: Connect the tubing to the humidifier FIRST beforeconnecting to the saddle valve.

1. SAND THE END (Fig. 21) of theplastic water supply tube.FAILURE TO DO SO MAY RESULTIN LEAKS. Use mediumsandpaper (not provided) approx11/4” from the end in a rotatingmotion. This assures a non-slipping, trouble free connection.

2. Slide the nylon compression nut and the black rubber ferruleonto the sanded plastic tubing and then fit the brass insert intothe end of the plastic tubing. (Fig. 22)

3. Push the plastic tubing firmly into the humidifier’sfloat valve threaded water inlet. Carefully begintightening the nut by hand. Use an adjustable wrench to finishtightening. (Fig. 23)

NOTE: The optimum tightness of the nylon compression nut willleave a gap of approximately 3/16” between the nyloncompression nut and the nylon hex nut.

INSTALLING THE SADDLE VALVE TO THE WATER PIPE

The water supply for the humidifier is provided from an existingcold water pipe by using a self-piercing saddle valve. In order foryou to use the supplied plastic tubing, select the nearest coldwater pipe suitable for saddle valve installation.

1. Turn the main water supply off.

2. Rotate the saddle valve handle so that the piercing pin doesnot protrude beyond the top clamp.

3. With the rubber gasket in the fixed position, clamp the saddlevalve on the selected locationof the cold water pipe andmount the bolts and nuts tothe saddle clamps.

4. To pierce the copper pipe,simply turn valve handle clock-wise until you feel that it isfirmly seated. (Fig. 24)

NOTE: Do not open the valvenow. Proceed with the mountingof the plastic tubing to the saddlevalve first.

CONNECTING THE PLASTIC TUBING TO THE SADDLE VALVE

1. Cut the plastic tubing with a sharp knife to the proper lengthto fit between the humidifier and the saddle valve.

2. SAND THE END (Fig. 21) of the plastic water supply tube.FAILURE TO DO SO MAY RESULT IN LEAKS. Use mediumsandpaper (not provided) approx 11/4” from the end in arotating motion. This assures a non-slipping, trouble freeconnection.

3. Slide the brasscompression nut andnylon ferrule onto thesanded plastic tubeand fit the brass insertin the end of thetubing. (Fig. 25)

4. Push the tubing firmly into the saddle valve threaded wateroutlet, carefully begin tightening the compression nut by hand(be careful not to cross the threads). Use and adjustablewrench to finish tightening the brass compression nut. Do notover-tighten.

OVERFLOW DRAIN CONNECTION (OPTIONAL)

NOTE: WE STRONGLY RECOMMEND YOU INSTALL A DRAINTUBE TO PROTECT YOUR PROPERTY IN CASE OF WATERLEAKAGE. IF YOU ARE PLANNING ON INSTALLING A DRAINTUBE ONTO THE UNIT YOU WILL HAVE TO PURCHASE THEREQUIRED LENGTH OF TUBING AND A HOSE CLAMPSEPARATELY. AS WELL YOU SHOULD HAVE DRILLED OUTTHE DRAIN FITTING BEFORE INSTALLING THE WATER PANONTO THE FURNACE. ONLY DRILL OUT THE WATER PAN IFYOU PLAN TO INSTALL A DRAIN TUBE.


Figure 20

DAMPEROPEN

TOP SCREWFOR DAMPERMOUNTING

Figure 21

Figure 22NYLON COMPRESSION NUT

SANDED TUBE

BLACK RUBBERFERRULE

BRASS INSERT

Figure 23

Figure 24

ROTATE CLOCKWISETO PIERCE PIPE

PIERCING PIN

SELFPIERCING

VALVE

TOPCLAMP

BOTTOMCLAMP

RUBBERGASKET

Figure 25

SANDED TUBE

NYLONFERRULE

BRASSINSERT

BRASSNUT

REQUIRED SEPARATELY PURCHASED PARTS FOR DRAINAGEINSTALLATION:

• 5/8” OD 1/2” ID DRAIN HOSE, LENGTH AS PER YOURINSTALLATION.

• HOSE CLAMP FOR 5/8” OD HOSE.

1. Measure the required length of drain tube from the bottom ofthe humidifier to an appropriate floor drain.

2. Prepare the drain fitting at the rear of the water pan beforeinstalling the water pan onto the furnace.

3. Referring to figure 26, first drill a small hole (1/8” dia) centeredfrom the bottom of the drain fitting up through the pan.

4. Then using a 3/8” drill bitcarefully enlarge the hole to allowfor free flow of water.

5. Once the drain fitting has beendrill and the water pan installedonto the furnace you may installthe drain tube (5/8” OD, 1/2” ID)not supplied.

6. First install a 5/8” hose clamp(not supplied) over the end of thedrain tube, then push the draintube up over the drain fitting andsecure in place with the hoseclamp. (Fig. 27)

7. Feed the other end of the draintube to a floor drain, secure to thefloor drain using a tie strap orcable tie (not supplied).

STEP #5: ELECTRICAL INSTALLATION

This unit is supplied with a 24 volt plug in transformer. Thetransformer must be plugged into a constant (one that will not beshut off) 120 volt outlet. The transformer is supplied with 10 feetof low voltage wire which must feed the humidistat and thehumidifier’s drum motor. Select an outlet within the 10 feet.

HUMIDISTAT

The humidifier is supplied with an exclusive universal humidistatwhich can be either wall mounted as furnished or, with a fewminor changes, be mounted on the return (cold) air plenum/duct.Either wall mounting or plenum/duct mounting works equallywell for humidity sensing and control. Wall mounting provideseasy access to adjust the humidistat setting since it is located inthe living area. Plenum/Duct mounting provides a simpleinstallation (you should not have to purchase extra low voltagewire or fish the wires through the wall).

WALL MOUNTING

1. Your humidistat is furnished in the “wall mounting” mode, nochanges to the humidistat are necessary, because the circuit islow voltage (24 V), no switch box is required.

2. Select a location about five (5) feet above the floor on an insidewall where normal air circulation exists. (In most residential

installations, the humidistat is installed near the heatingthermostat for easy adjustment and wiring.)

3. Because the humidistat will be located further away from thehumidifier you will have to purchase approximately 15 to 20feet of 20 ga low voltage wire.

4. Drill a small hole in the wall and then fish the low voltage wireout thru the hole. Leave approximately 6 inches of low voltagewire leads outside the hole for humidistat connection.

5. Remove the cover platefrom the humidistat andyou will see four holesat the corners of thebase plate mount thehumidistat on the wallusing the (4) 1” longscrews provided. Makesure it is level and thelow voltage wire iscoming out thru the 3/8”hole on the base plate.(Fig. 28)

6. Strip the low voltage wires and make connections to thehumidistat using the two 90˚ wire terminals provided. Replacethe cover plate.

7. Install the knob onto the humidistat control shaft.

PLENUM/DUCT MOUNTING

1. As shipped, the humidistat is ready for wall mounting. Youmust first convert the humidistat from wall mounting toplenum/duct mounting. The control mechanism must be inthe air stream in order to sense and control the humidity.

2. Remove the cover plate and discard it.

3. Remove the controlmechanism from thebase plate by removingthe two holding screwsat the back, and then,turning the controlmechanism 180˚upside down to allowthe shaft to protrudeout through the 1/2”hole on the base plate(NOTE: base plateremains in the sameposition and only the control mechanism is turned (Fig. 29).

4. Replace the two screws to hold the control mechanism to thebase plate.

5. Attach the two 90˚ electrical terminals to the humidistat.

6. Use adhesive tape (not provided) to affix the humidistatopening template to the pre-selected location and then drillthe 4 mounting holes and a 3/8” hole in the area markhumidistat cutout.

7. Using the 3/8” hole as a starting point make the cutout cuttingon the outside of the line.

8. Skip to low voltage wiring section.

7Furnace Humidifier

Figure 26

Figure 27

DRAIN FITTING

HOSE CLAMP

DRAIN HOSE

Figure 28

90˚ WIRE TERMINALSFOR LOW VOLTAGEWIRE CONNECTIONS

4 SCREWS PROVIDEDFOR MOUNTING TOTHE WALL BASE

PLATE

KNOB CONTROLLABEL

COVERPLATE

3/8” HOLE

Figure 29

HOLDING SCREWS

PRE-CUTPLENUMHOLE

CONTROLMECHANISM

KNOB CONTROL LABEL

BASE PLATE

SHAFT

LOW VOLTAGE WIRING

The 24 volt plug in transformer has 10 feet of low voltage wireattached. Your 120 Volt outlet should be located close enough toconnect the end of the low voltage wire to the drummotor and havethe duct mounted humidistat located in between. DO NOT PLUGTHE TRANSFORMER IN UNTIL INSTALLATION IS COMPLETE.

1. The humidifier motor lead wire has two push-on terminalswhich will mate with the 2 terminals at the end of the lowvoltage wire on the transformer. Connect these wires together.

2. In the area where the humidistat is to be mounted position thelow voltage wire harness and carefully separate the 2 wiresapart. (Fig. 30)

3. Cut one of the conductors and strip the insulation from bothends. (Fig. 31)

4. Connect the stripped ends to the 90˚ terminals on theplenum/duct mount humidistat or to the low voltage wire fromthe humidistat wall mounted in the living area (depending onwhich humidistat installation you chose).

5. Complete the installation of the Duct mounted humidistat.

6. Mount the humidistat onto the return duct by using the four 1”long sheet metal screws provided (Note the small rectangularnotch at the bottom provided for the access of the low voltagewire to the humidistat wiring terminals.)

7. Remove the paper backing from the control label and applythe label onto the face of the base plate.

8. Install the knob onto the humidistat control shaft.

STEP #6: ADJUSTING THE WATER LEVEL

TURNING THE WATER ON

1. Turn on the water supply at both the main water supply andthe self-piercing saddle valve. Check to see if water leaks atany joints. If there is a leakage, tighten the compression nut tocorrect the problem.

2. Water should flow gently into the water pan. If it flows too slowor too fast, adjust the self-piercing saddle valve.

ADJUSTING THE WATER LEVEL

1. The water level is adjusted byaltering the height of the float.

2. Rotate the knob of the valve seat(Fig. 32).

3. Adjust the float in such away so that it closes the automaticvalve when the selected water level has been reached.

4. The maximum water level in the pan should not exceed 1/2”from the top of the water pan.

STEP # 7: COMPLETING THE INSTALLATION.

CHECK THE ELECTRICAL WIRING

1. Plug the transformer in and turn up the humidistat to that it iscalling for humidity, 50% +.

2. The drum should start rotating – either direction is fine.

3. Adjust the humidistat down to the off position and thehumidifier will shut off.

INSTALLING THE BYPASS TUBE

4. Retrieve the flexible bypass tube andtwo spring clamps

5. Install the bypass tube on the bypasscollar and damper first.

6. Slide one of the 6” spring clampssupplied over one end of the bypasstube. (Fig. 33)

7. Slide this same end of the bypasstube over the flange of the collar andsecure inplace with the spring clamp.(Fig. 34)

8. Slide the other 6” spring clamp overthe other end of the bypass tube.

9. Slide this end of the bypass tube ontothe humidifier’s bypass side panel andsecure in place with the spring clamp.

INSTALLING THE FRONT COVER

10. Retrieve the humidifier’s front cover.

11. At the top rear of the front there are2 mounting pegs (Fig. 35). These pegswill fit into round slots at the top/rearof both side panels (Fig. 36).

12. With the front cover in the fullyopen position (not attached to thehumidifier), tilt the cover at approxa 30˚ angle and insert one of thefront cover pegs into the round slot(Fig. 37).

13. To finish installing the front coverslightly deflect the top/rear of theopposite side panel and insert theother peg into the round slot (Fig. 38).

14. With the front cover installed grasp the bottom and pull downuntil fully closed, it will snap closed at the bottom (Fig. 39).

Installation is now complete. Move to humidifier operation section.


Figure 30

CUT THE MIDDLE ANDSEPARATE APPROX. 3”

LOWVOLTAGEWIRE SET

Figure 31

CUT ONE OF THECONDUCTORS ANDSTRIP THE ENDS

LOWVOLTAGEWIRE SET

Figure 32

KNOB(ROTATE TO ADJUSTTHE WATER LEVEL)

Figure 33

FLEX TUBE

SPRING CLAMP

Figure 34

FLEX TUBE

SPRING CLAMPCOLLAR FLANGE

Figure 35

MOUNTINGPEG

MOUNTINGPEG FRONT

COVER

Figure 36

ROUND SLOT FORFRONT COVER

Figure 37

INSTALL COVER FULLYOPEN AT 90˚ ANGLE

Figure 38 Figure 39

SNAPCLOSED

SNAPCLOSED

HUMIDIFIER OPERATION

ROTATING DRUM HUMIDIFIER

Because this rotating drum humidifier utilizes a waterpan/reservoir the unit is 100% efficient, all the water used isdelivered to the air. For this reason the unit does not have to beinterlocked with the furnace cycles, the drum can rotatewhether the furnace is heating or not, no water will be wastedand the humidistat will control the amount of moisturedelivered to the air.

CONTROLLING THE HUMIDITY LEVEL

The mechanical humidistat supplied with this unit is to controlthe amount of moisture added to the air in your home – It willsense the relative humidity level in the air and work as anON/OFF switch to control the humidifier, regardless of whetherthe furnace is running.

At the beginning of the heating season it may take sometime tobuild up the relative humidity level in your home to the desiredlevel – For the first few weeks turn the humidistat up high toensure the humidifier will run. After you feel that you haveachieved the desired relative humidity level turn the humidistatdown until it cycles the humidifier OFF. The humidifier will thenwork to maintain the relative humidity at that level.

ACHIEVING AND MAINTAINING A HUMIDITY LEVEL

Outside conditions are the primary factor affecting the humiditylevel in your home. The colder it gets outside the less moisturethe outside air will have, your home brings in the outside airand the humidifier will work to add moisture to it. As outsideconditions change the humidity level in your home will changeas well. Other factors which will affect humidity levels in thehome include, how many air-changes your ventilation systemdelivers, the amount of people occupying the home, air leaks,the use of showers, exhaust fans, HRV’s, and the use offireplaces or wood stoves.

SAFELY OPERATING A FURNACE HUMIDIFIER

Proper control of the relative humidity level in the home is key toensuring good Indoor Air Quality (IAQ) for your home as well asprotecting against moisture damage.

Although a relative humidity environment of 45 to 50% may bedesirable, setting your humidistat at that point when outside airtemperatures are below 30˚F (-1˚C) can cause condensation onwindows and walls. Continued condensation for extendedperiods of time may result in structural damage. Use the chartbelow as a guide for maximum relative humidity settings at thedifferent outdoor air temperatures.

RECOMMENDED MANUAL HUMIDISTAT SETTINGS

If condensation continues to form on windows at these settingsreduce the humidistat setting by successive 5% increments. Aftereach reduction in setting allow 6 hours for equilibrium to bereached before readjustment.

If condensation persists with progressively lower settings madeduring a 3 day period turn off the water supply at the saddlevalve, turn the humidistat to OFF and consult your heatingcontractor.

When your house is unoccupied for longer than 3 days duringthe winter always set the humidistat down to 15% so that severeweather during your absence will not result in condensationwhich may cause damage to your home.

SUMMER SHUT DOWN

During the summer season the humidity level in the air is quitehigh. Therefore it is advisable to shut off the humidifier system.Complete the following steps at the end of the winter season.

1. Close the water supply at the saddle valve.

2. Turn the humidistat knob to the OFF position.

3. Empty and clean the water pan.

4. Close the bypass air damper.

CARE AND MAINTENANCE

Because drum humidifiers utilize a water pan/reservoir they aresusceptible to water deposits and mineral build up, for this reasonwe strongly recommend that the yearly maintenance include

• Replacing the evaporator pad

• Cleaning/replacing the float & valve assembly

• Cleaning/replacing the water pan

If you complete all the above tasks at once the amount of timeinvolved will be greatly reduced and your humidifier willcontinue to work at peak efficiency.

OUT SIDE AIR TEMPERATURE MAXIMUM RELATIVE HUMIDITY SETTING

-20°F /-30°C 15%

-10°F /-25°C 20%

0°F / -20°C 25%

+10°F/ -10°C 30%

+20°F/ -5°C 35%

30%F/ 0˚C 40%

ABOVE 45% MAXIMUM

9Furnace Humidifier

CLEANING OR REPLACING THE EVAPORATOR PAD

(Figures 40 a, b, c)

To clean or replace theevaporator pad follow the stepsbelow.

NOTE: Do not rotate the drumassembly by hand this maycause damage to the gears inthe drum motor.

1. Unplug the transformer (turnpower off to the humidifier).

2. Turn off the water supply atthe saddle valve.

3. Open the humidifier frontCover (Fig. 40a). The cover issnap closed on the left handside, to release slightlydeflect the front cover flangeat the bottom left and lift up.In the fully open position thecover will stay open.

4. Gently remove the drum/evaporator pad assembly at thebearing end (open end) first. Take care not to lose the bearingwhich the drum shaft rides in. Once the bearing side isremoved you will be able to tilt the drum/evaporator padassembly out from the motor coupling. (Fig. 40b)

5. Hold the drum assembly in a horizontal position and pull thebushing out with your fingers (Fig. 40c).

6. Slide the evaporator pad off the drum cage.

7. To replace the pad keep the bushing in the extended positionand slide the evaporator pad over the spokes until it is againstthe disc flange.

8. Push the bushing back along the shaft to the stop lugs. Theevaporator pad is now locked into position.

9. Replace the drum/evaporator pad assembly completing step 4in reverse motor coupling end first.

10. Close the front cover.

11. Turn on the water supply and plug the transformer back in.

CLEANING OR REPLACING THE FLOAT VALVEASSEMBLY/COMPONENTS


To clean or replace the float valve assembly/components followthe steps below.

1. Unplug the transformer (turn power off to the humidifier).

2. Turn off the water supply at the saddle valve.

3. Open the humidifier front Cover (Fig. 41a). The cover is snapclosed on the left hand side, to release slightly deflect the frontcover flange at the bottom left and lift up. In the fully openposition the cover will stay open.

4. If you wish to replace the entire float valve assembly included

valve jet shield, disconnect thewater supply from the valve’sthreaded inlet by using anadjustable wrench to loosenand remove by hand (Fig. 41b).

5. Loosen the white mountingnut using an adjustablewrench and remove by hand.You can now remove the floatand replace with a new one.

6. Re-attach the components inreverse order as above.

7. Turn the water back on andcheck for and repair any leaks.

8. Plug the transformer back in.

9. To replace or clean selectedcomponents of the float valveassembly (Fig. 41c), Place yourthumb and forefinger aroundthe neck of the float.

10. Squeeze firmly. This will disengage the two pivot pins from theholes at the sides of the valve jet shield and release the float.

11. The valve seat and knob can then be pulled off the spigot.

12. When replacing the valve seat be sure that it is pushed downas far as it will go onto the float.

13. Clean components or replace with new parts and reassemblythe float.

14. The float valve assembly can be cleaned by using a solutionof 50/50 water and vinegar.



CLEANING OR REPLACINGTHE WATER PAN


To clean or replace the water panfollow the steps below.

1. Unplug the transformer (turnpower off to the humidifier).

2. Turn off the water supply atthe saddle valve.

3. Open the humidifier frontCover (Fig. 42a). The cover issnap closed on the left handside, to release slightly deflectthe front cover flange at thebottom left and lift up. In thefully open position the coverwill stay open.

4. To remove the float from thejet shield place your thumband forefinger around the


Figure 40a)

DEFLECTLEFTHAND

FLANGE OUTDEFLECTRIGHTHANDFLANGE OUT

DRUM EVAPORATOR PAD ASSEMBLY

OPENENDFIRST

TILTASSEMBLYOUT

SPOKES

BUSHINGDISKFLANGE

DRUMSHAFT

STOP LUGSPULL OUT

b)

c)

Figure 41a)

DEFLECTLEFTHAND

FLANGE OUTDEFLECT RIGHTHANDFLANGE OUT

KNOB

SPIGOT

PIVET PIN

VALVE JETSHIELD

FLOAT

VALVE SEAT

b)

c)

SQUEEZEHERE (NECK)

Figure 42a)

DEFLECTLEFTHANDFLANGE OUT

DEFLECT RIGHTHANDFLANGE OUT

DEFLECTSLIGHTLY

THUMB AND FOREFINGERSQUEEZE HERE

SIDE PANELSLOT

b)

c)

WATER PAN HOOK

DEFLECTSLIGHTLY

neck of the float squeeze firmly and this will disengage the 2pivot pins from the holes at the sides of the valve jet shield.(Fig. 42b)

5. Remove the drum and evaporator pad assembly bearing endfirst (see instructions above).

6. Remove the two screws which secure the water pan to the sidepanels, the screws are located at the front, on the underside ofthe water pan’s side flanges. There is also a set of hooks oneither side of the front of the pan which fit into slots on bothside panels, to release the water pan deflect each side slightlyin the area where the pan attaches and lift up. (Fig. 42c)

7. Once removed from the slots the pan will slide out.

8. Clean in a 50/50 mixture of water and vinegar.

9. Replace all components in reverse order



WARRANTY

The manufacturer guarantees the for the period of one year fromthe date of purchase, the product will be free of defects inworkmanship and/or material. As well the manufacturer offers alife time warranty on the flow through humidifier body. Duringthe warranty period, we will replace or repair any defective partat no charge if the product is returned prepaid to our factory.

This warranty does not cover any labor or shipping costs, or thecost of replacement components as part of routine maintenance(such as Flow Through Humidifier Evaporator Pads, Inlet waterFilters, or Orifice Fittings). Any damage or failure caused byabuse, misuse, abnormal usage, faulty installation, or impropermaintenance will not be covered by this warranty.

In order to make a claim on this warranty you must be theoriginal consumer of the product and you must contact themanufacturer 1-800-465-7300 between 8 AM and 3:30 PM ESTMonday to Friday at the first sign of a defect. You will be requiredto present to the manufacturer the original bill of sale showingdate of purchase, place of purchase, and model purchased.Failure to meet these requirements will void your warranty.

The manufacturer will not be held responsible for any bodilyinjuries or damages to personal property or real estate whethercaused directly or indirectly by the product. Some states andprovinces do not allow the exclusion or limitation of incidental orconsequential damages and some states or provinces do notallow limitations on how long an implied warranty lasts, so theseexclusions or limitations may not apply to you. This warrantygives you specific legal rights and you may have other rightswhich vary from state to state and province to province.

SAVE THIS DOCUMENT AND ATTACH YOUR RECEIPT.

Date of Purchase Date Of Installation

Place of Purchase Brand and Model#

NOTES

11Furnace Humidifier


0109160011/per120/24VAC transformer3

23

17

24

19

22

20

15

16

14

7

11

12

10

5

6

4

8

bearing

evaporator water pad

1/per

1/per

011509000

01A017256

1/pernylon ferrule

air damper

collar

drum cage

water pan

needle valve assembly

1/per

1/per

1/per

1/per

1/per

1/per

water level knob

1/4" plastic water tubing

nylon compression nut

rubber ferrule

nylon hex nut

bypass side panel

motor side panel

motor

1/per

1/per

10 feet/unit

1/per

1/per

1/per

1/per

1/per

010926001

01A172107

01A170930

01A900914

011484000

0PB132055

060011142

01A930040

0600110801

01A010816

01A017083

011482000

011481000

01A172235

MODEL 1000

ITEM NUMBER

1

2 humidistat (specify brand)

cover (specify brand)

DESCRIPTION

1/per

1/per

QTY/UNIT

01A000000

011483000

PART NUMBER

18

by-pass tube 3 feet/unit 010917000

21

9

1/per

13

nylon compression nut 1/per 060010801

1

2

3

4

5

7

10

1314

15

16

1819

17

20 21

22

23

24 25

26

2728

29

27

brass insert 01A930041

14

drum shaft 01A900911

6

8

26

25

tesa foam 8 inches/unit 20221

tesa foam 6 3/4 inches/unit 20221

6" spring wire clamp 2/per 01093800027

28

29

9

1112

water level knob seat 1/per 01A017084

float 1/per 01A900903

jet shield 1/per 01A900906

Documents

FREQUENTLY ASKED QUESTIONS - waithumidifiers.comwaithumidifiers.com/instructions/wait1000.pdfFREQUENTLY ASKED QUESTIONS Question: What type of furnaces will this humidifier work on?